I follow the sleuth of the anonymous monk: What does locale -k LC_NUMERIC say? Wild guessing, I know.

Update: From sprintf:

«If use locale (including use locale ':not_characters') is in effect and POSIX::setlocale has been called, the character used for the decimal separator in formatted floating-point numbers is affected by the LC_NUMERIC locale. See perllocale and POSIX.»

«The Crux of the Biscuit is the Apostrophe»

In reply to Re: weird problem with macports perl on apple m1/m2 based system by karlgoethebier
in thread weird problem with macports perl on apple m1/m2 based system by perltux

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